Sample Irregularities Sample Irregularities Sample Irregularities Sample Irregularities 1 6 11 16 2 7 12 17 3 8 13 18 4 9 14 19 5 10 15 20 a. Using these​ data, set up a​ c-chart with z. The equals 21.46 and the equals 1.24. ​(Enter your responses rounded to two decimal​ places.) b. Suppose that the next five samples had ​, ​, ​, ​, and irregularities. What do you​ conclude? A. At least one of the sample points is greater than the lower control​ limit, so the process is not in control. B. C. D. All of the sample points are within the control​ limits, so the process is not in control. E. At least one of the sample points is less than the upper control​ limit, so the process is not in control. F.

180

step-by-step explanation:

12-2=10

20-2=18

18x10=180

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions

b: |12 – x| ≤ 0.25

step-by-step explanation:      

let x be the possible lengths in inches, of the ribbons jaime cut.

we have been given that jaime is cutting strips of ribbon for a project. he tries to cut each piece to be 12 inches long, but sometimes he cuts it too long or too short by as much as 0.25 inch.  

we can represent this information in an inequality as:

by the definition of absolute value function we will get,

upon combining our inequalities we will get,

therefore, the inequality   describes all the possible lengths (x), in inches, of the ribbons jaime cut.

step-by-step explanation: